import matplotlib.pyplot as plt

import numpy as np


def Circle(r=10, O=[0,0], color='r'):
    if O is None:
        O = [0, 0]
    x0 = O[0]
    y0 = O[1]
    t = np.linspace(0, 6.28, 1000)
    X = np.sin(t) * r + x0
    Y = np.cos(t) * r + y0
    plt.plot(X, Y, color=color)
    pass


def Line(A, B):
    plt.plot([A[0], B[0]], [A[1], B[1]], color='r',linewidth='0.1')
    pass


# Circle(10,color='b')
# plt.show()
